Friday 18 July 2014
The Franz Josef (Ka Roimata o Hinehukatere in Maori) is a 12 km long glacier located in Westland Tai Poutini National Park on the West Coast of New Zealand's South Island. Together with the Fox Glacier 20 km to the south, it is unique in descending from the Southern Alps to less than 300 metres above sea level, amidst the greenery and lushness of a temperate rainforest. The area surrounding the two glaciers is part of Te Wahipounamu, a World Heritage Site park. The river emerging from the glacier terminal of Franz Josef is known as the Waiho River. The glacier is currently 12 km long and terminates 19 km from the Tasman Sea. Fed by a 20-square-kilometre large snowfield at high altitude, it exhibits a cyclic pattern of advance and retreat, driven by differences between the volume of meltwater at the foot of the glacier and volume of snowfall feeding the neve. Having retreated several kilometres between the 1940s and 1980s, the glacier entered an advancing phase in 1984 and at times has advanced at the phenomenal (by glacial standards) rate of 70 cm a day. Source
